fix: 默认值

src/views/index.vue

@@ -83,6 +83,7 @@ let items: ProForm.ItemsOptions[] = [
     prop: 'username',
     rules: [{ required: true, message: '请选择步长', trigger: 'blur' }],
     compOptions: {
+      elTagName: 'input',
       clearable: true,
       placeholder: '请输入用户名'
     }